Driving mechanism for crushers



J. E. KENNEDY.

DRlVl-NG MECHANISM FOR CRUSHERS;

APPLICATION FILED JAN. 12, 1918.

1,385,687. i PatenfiedJuly26-l921.

3 SHEETS-SHEET l- WITNESSES. INVENTOR W dd ' ATTORNEY J. E. KENNEDY.

DRIVING MECHANISM FOR CRUSHERS.

APPLICATION FILED JAN. 12. I918.

Patel lted July 26, 1921.

3 SHEETS-SHEET 2.

J. E. KENNEDY; DRIVING MECHANISM FOR CRUSHERS.

3 SHEETS-SHEET 3.

Patented July 26 ATTORNEY UNITED STATES PATENT OFFICE.

DRTVING MECHANISM FOR CRUSHERS.

Specification of Letters Patent.

Patented July 2c, 1921.

Original application filed October 23, 1917, Serial No. 198,023. Divided and this application filed Ianuary 12, 1918. Serial No. 211,634.

To all whom it may concern:

Be it known that I, JOSEPH E. KENNEDY,

, a citizen of the United States, and a resident of the borough of Manhattan, city, county,

and State of New York, have invented certain new and useful Improvements in Driving Mechanism for Crushers, of which the means for driving the eccentric by which the gyratory shaft is operated. Gear driven mills are adapted to coarse reduction of material, but the increased use of relatively finely crushed material for concrete and similar purposes has created a demand for apparatus adapted to produce a relatively large output of the finer graded material more rapidly than heretofore. Hence, the main object of my invention is to speed up crushing apparatus of the gyratory type, and to otherwise adapt it to the special requirements for use in the production of material of relatively fine grade,-.the invention consisting in the specific construction and arrangement of parts described and claimed herein, a distinctive feature being the means employed for guiding and controlling the endless drive for the rotatable sleeve in which the eccentric bearing, is mounted, all as hereinafter fully set forth.

In the accompanying drawings,

Figure 1, is a plan of my improved crushingrapparatus, with means for driving same;

. ig. 2, is a central vertical sectional elevation taken mainly upon plane of line 2-'2,

F g. I

7 1g. 3, 1s 'a rear elevatlon showing thedriving means; I

Fig. 4, is a horizontal section taken upon plane of line 44, Fig. 2.

In general characteristics the apparatus I illustrated in the drawings is primarily the same in principle and operation as set forth in Letters Patent No. 1,085,867, issued to me Feb. 3, 1914, No. 1,090,216, issued to me March 17 1914, and No. 1,176,833, issued to me March 26,1916, to which reference may .dred per cent. or more.

be had as showing the type of gyratory crusher to which my present improvements.

are especially applicable. Thus the truncat/ed conical crushing head a, is rigidly secured to the shaft A, and is yrated thereby within a concave crushing c amber b, from the lower portion of which. the reduced material drops into the. chute chamber d, in

the usual manner.

The shaft A, is suspended on an inclosed top or cover C, of special construction, having a central hub'c, formed with an inturned bottom flange or annular shoulder 0', on

which the said shaft A, is fulcrumed in such 1 manner as to allow of 1ts ration'by, means of the eccentric bearing 6, 1n which the lower end of said shaft A, is mounted. The upper extremity of the shaft A, is screw threaded and provided with a nut collar (1, which bears on a sleeve (1 resting in turn on a gasket a interposed between it and said annular shoulder a, of the hub 0, of the cap plate C, as shown particularlyv in Fig; 2,--a bushing 0 being interposed between the hub c, and the bearing sleeve a.

To the upper part of this eccentric bearing sleeve 6, is rigidly secured, as by the key, 6 the driven pulley e", by which said sleeve e, is rotated to impart a gyratory rotation to the shaft A, through the medium of the aforesaid eccentric bearing e,'the operation and functions of which latter are clearly set forth in the Letters Patent hereinbefore referred to, particularly Letters Patent No. 1,176,833.

The eccentric sleeve pulley e, is preferably grooved peripherally to receive one or more drive belts c', usually in the form of ropes which pass under deflecting idler pulleys I, (Fig. 3) to a drivin piplle y or rope sheave J, on the power 'sha t he journals of the idler pulleys or rope sheavesI, are mounted in bearings which may be regulated in inclination as well as vertically and horizontally so as to afford practically universal adjustment as related to the eccentric sleeve pulley e". By this means also taut and accurate service of the ropes or belt i,to the said.pulley e", is attained, so that the eccentric sleeve 6', may be rotate'd at a relatively high speed as compared with theold method of driving it by miter gearing. Thus by my new method of gyratory drive the speed and capacity of the apparatus may be safely increased one hun- The provision of the universally. adjustable idlers I, also enables me to readily install the crushing apparatus at a much lower level than the available .ment between the driving The belts z', '5, pam through openings (1', d, speciall formed forthem in the bottom shell D, w ich is otherwise continuous in horizontal cross' section and incloses the driving pulley e", eccentric bearing e, and

sleeve 0' etc., as" will be seen more particularl by reference to Figs. 2 and 4.

he journal bearings b, for the idler sheave 1ourna1s z", are mounted so as to be 10 adjustable both vertically and in inclination upon pillow blocks ,B, by means of the screws b, 6', while the blocks B, are themselves hor zontally adjustable u on their foundations F, as bymeans of t e screws resistance to a minimum and to insure speed of rotation of the eccentric bearing e,and gyratory shaft A.

What I claim as m invention and desire to secure by Letters atent is, 1. A belt drive comprising a drivenfpulley mounted to rotate about a vertical axis formedwith one or more rope grooves, one .or more drive ropes engaging said pulley, a horizontal drive shaft and a power pulley thereon formed with grooves correspondin to the driven pulley engaging with .sai endless drive rope or ropes, guide pulleys and shafts therefor intermediately installed between said power pulley and said rotatable sleevepulley and engagin with said endless drive ropes, and means or effecting theuniversal adjustment of said intermediate shafts and guide pulleys, forthe purpose set forth. J 2. Incrushing a designated, in com ination, a gyratory shaft suspended from above, an eccentric bearing. for the lower end of said shaft mountedin a rotatable sleeve, a plurall grooved pulley attached to said rotatable s eeve', a'plurality of endless ropes engaging with said pulley, and means for drivin said endless ropes, for the purpose .describe 3. In crushing apparatus of the character designated, in combination, a gyratory shaft suspended from above, an eccentric bearing .for the lower end of said shaft mounted in a rotatable sleeve, a: plurally grooved pulley attached to said rotatable sleeve, a plurality of endless ropes engaging said pulley, idler paratus of the character pulleys interposed between the power pulley and said pulley on. the eccentric bearing sleeve, said power pulley, justing said idler pulleys in inclination, for *the purpose-of guiding said driving ropes with accuracy as related to said eccentric sleeve pulley. v

y Y J OSEPH E. KENNEDY. Witnesses:

-MARGARET 'L. KINDT,

F. E. DowLINo.

and means for ad- 

